How severe is CVE-2023-39655?

CVE-2023-39655 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-39655 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39655?

CVE-2023-39655 affects Perfood Couchauth. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39655?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2023-39655 have an EU (EUVD) identifier?

Yes. CVE-2023-39655 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0346.

When was CVE-2023-39655 published?

CVE-2023-39655 was published on 2024-01-03 and last updated on 2026-06-17.

CVE-2023-39655

CVE-2023-39655 is a critical-severity vulnerability in Perfood Couchauth with a CVSS 3.x base score of 9.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0346
Weakness: CWE-74
Affected product: Perfood Couchauth
Published: 2024-01-03
Last modified: 2026-06-17

Description

A host header injection vulnerability exists in the NPM package @perfood/couch-auth versions <= 0.20.0. By sending a specially crafted host header in the forgot password request, it is possible to send password reset links to users which, once clicked, lead to an attacker-controlled server and thus leak the password reset token. This may allow an attacker to reset other users' passwords and take over their accounts.

Frequently asked questions

What is CVE-2023-39655?: A host header injection vulnerability exists in the NPM package @perfood/couch-auth versions <= 0.20.0. By sending a specially crafted host header in the forgot password request, it is possible to send password reset links to users which, once clicked, lead to an attacker-controlled server and thus leak the password reset token. This may allow an attacker to reset other users' passwords and take over their accounts.
How severe is CVE-2023-39655?: CVE-2023-39655 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-39655 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39655?: CVE-2023-39655 affects Perfood Couchauth. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39655?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2023-39655 have an EU (EUVD) identifier?: Yes. CVE-2023-39655 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0346.
When was CVE-2023-39655 published?: CVE-2023-39655 was published on 2024-01-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:perfood:couchauth:*:*:*:*:*:node.js:*:*

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